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GB685325A - Improvements relating to the manufacture of steel - Google Patents

Improvements relating to the manufacture of steel

Info

Publication number
GB685325A
GB685325A GB17360/50A GB1736050A GB685325A GB 685325 A GB685325 A GB 685325A GB 17360/50 A GB17360/50 A GB 17360/50A GB 1736050 A GB1736050 A GB 1736050A GB 685325 A GB685325 A GB 685325A
Authority
GB
United Kingdom
Prior art keywords
oxygen
per cent
pig iron
blast
content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB17360/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huettenwerk Oberhausen AG
Original Assignee
Huettenwerk Oberhausen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huettenwerk Oberhausen AG filed Critical Huettenwerk Oberhausen AG
Publication of GB685325A publication Critical patent/GB685325A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

In a method of manufacturing converter steel having a nitrogen content below 0.010 per cent the molten pig iron is blown with an air blast enriched with oxygen and in which the additional oxygen is supplied as the blow proceeds in such a manner that with pig iron having normal impurities the percentage of oxygen in the blast is raised by at least one additional per cent for each 1 per cent of carbon burned and the composition of blast reached at the end of the process, the addition of oxygen being partly effected by the addition of oxidic ores or scale to avoid overheating or uncooling. When the pig iron contains more than the normal content of impurities the oxygen content of the blast is correspondingly increased. The molten pig iron may be treated with oxygen in gaseous and/or solid form before being poured into the converter. The process is also stated to reduce the phosphorus content to below 0.05 per cent.
GB17360/50A 1949-10-03 1950-07-11 Improvements relating to the manufacture of steel Expired GB685325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE685325X 1949-10-03

Publications (1)

Publication Number Publication Date
GB685325A true GB685325A (en) 1952-12-31

Family

ID=6597824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17360/50A Expired GB685325A (en) 1949-10-03 1950-07-11 Improvements relating to the manufacture of steel

Country Status (1)

Country Link
GB (1) GB685325A (en)

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